1 September 2005, System Requirements Review completed by Army [6]
2006
February 2006, First flight of demonstrator with HTS-900-2 []
Ground run with HTS-900-2 (s/n 53903/N44515)
20 July 2006, First flight of prototype (s/n 53904/N44548) []
12 October 2006, Army expressed desire to increase aircraft purchased by 120 [7]
17 October 2006, Army officials discuss ARH program at AUSA convention. DOD felt 36-month development was too compressed, funded for 54-months, pushing first unit fielding to July 2009. Congress cuts initial purchase to 32 from 38. [8]
Delays
2007
January/February 2007, Elbit System's North American subsidiary EFW wins contract for ANVIS/HUD-24t helmet system [9] (date needs resolving, article identifies slippage of program to July 2009)
January/February 2007, program slips a year behind schedule [10]
21 February 2007, Crash of prototype #4 (s/n 53906/N445HR) [11]
22 March 2007, Stop Work notice and effects [12][13]
20 April 2007, Bell submits plan to Army to continue program [14]
15 May 2007, Boeing revises offer to produce AH-6, claiming they can meet performance and timeline requirements for current contract with Bell [15]
18 May 2007, Army decides to continue ARH development [16]
August 2007, Continued development []
11 September 2007, Senate approves full funding for revised ARH schedule [17]
9 November 2007, Army awards contract to Raytheon for Common Sensor Payload (CSP) program to replace FLIR Systems' Brite Star II on ARH-70 [18][19]
13 November 2007, achieved 1,000 flight hours in 15 months. [20]
